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Windows 7: Cant Use Mouse and Keyboard on Welcome Screen

Good evening, Ive had many problems with my Windows lately and got struck with a boot error a few days ago. I solved it by using this tutorialhttp://www.sevenforums.com/tutorials/139576-startup-repair-infinite-loop-recovery.html*but I think I may have upset my computer and broken the devices functionality and because I thought my startup from a bootable USB was working as it turned out, I did the settings from within my own computer instead of an installer from the USB which was why startup repair failed in the first place.

Anyway after that ordeal I have to deal with this problem and it seems many people found the solution by accident or pure luck.

Here are some things I have tried:

Start in Safe Mode*
In Last Known Config*
Normal
Disable Driver Signature Enforcement
Start Up Repair
Chkdsk /r
No PS/2 Port
Scannow win dir cannot work because windows resource protection
I tried re-doing registry beehive restoration but to no avvail no luck :/

Im using win 7 ultimate x64, dell xps15z. I have Dell Safety Recovery Backup but not sure if it wipes my memory away as it needs my files to be backed up? Im saving that as a last resort.

Hey thanks for welcoming me. I can only use WinRecovery via my hard drive/ win 7 installation usb to use cmd prompt I have no access to windows except for the welcome acreen which Im stuck in. I will get back to you after doing it for 3 times. Im also trying to use Ubuntu to fix the registry files later on. Also apparently u can make login to windows withkut going through the login screen by creating own user name via cmd prompt but not so sure about that option.

Kolby now the best thing that can happen is for you to get into safe mode - if you don't know how (I am assuming that) you jut need to tap the F8 key when powering up and Windows will only load the very basic and essential files for it's operation and then you can run sfc and chkdsk from there .

If you cannot get safe mode then we might have a real problem elsewhere - for example the hard drive or memory.

Edit I asked re safe mode because I didn't know what the asterix was meant to signify

Now if you are thinking of doing a complete clean reinstall then you can get the data off before you do that using these
BOOTABLE UBUNTU
Make a bootable Ubuntu disk Download Ubuntu Desktop | Download | Ubuntu
Set the BIOS to boot from the optical when the machine boots it will show you a screen with TRY or INSTALL > select TRY not INSTALL
When it is finished - it takes very little time you will get a screen like in the pic .
Open the drive you want > User and dig down until you get to the data / settings you may be able to copy / paste the material you want to an external source or other installed drive doing this.
I am not sure if it will but I have recovered tons of data etc using this method both on "dead" or just plain drives that you cannot get data from using Windows.

Thank you for replying, I was trying so many stuff ever since you posted it and finally came to conclusion to reformat my hard drive.

Now I'm thinking of replacing my internal hard disk with a new one(to add more RAM and disk space), so can I just recover the files by making my current internal hard drive into an external hard drive and then copy from it or do I still need to backup system files?

Also does copying from my internal hard drive to another external hard drive right now count as 'backing up' or do I need to use a software?(I have Hiren Boot CD) I'm struggling to understand the difference between using a software and just copying and pasting the files to another disk.

Did you get to the point where you enter the user password or it stuck before that? When you boot from the installation disk, do you have mouse and keyboard? With the installation disk, did you do a chkdisk? To find and repair errors that are found in the C: drive, use the following command: chkdsk C: /f

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